发明人冯建国,郭海燕,沈红梅. "Method for the Synthesis of (R)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(2,4-difluorophenyl)butanoic acid" [P]. 中国发明专利, 专利号 CN 113083508 A, 授权公告日 2015-07-20.
发明人韩伟,林芳,罗永刚. "A Process for Preparing High-Purity (R)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(2,4-difluorophenyl)butanoic acid" [P]. 中国发明专利, 专利号 CN 117267642 A, 授权公告日 2024-10-11.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2018, 2388, (1), 1434-1464.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2021, 118, (2), 2765-2774.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of (R)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(2,4-difluorophenyl)butanoic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2016, 924, 7408-7421.